median sacral crest

例句：

1. 1.The median sacral crest is a crucial part of the human body's structure.
   中位骶突是人体结构的关键部分。
2. 2.During surgery, the surgeon carefully excised the median sacral crest to avoid damaging the nerves.
   在手术过程中，外科医生小心翼翼地切除了中位骶突，以避免损伤神经。
3. 3. The median sacral crest plays a vital role in maintaining balance and stability in the lower extremities.
   中位骶突在维持下肢平衡和稳定性方面起着重要作用。